20185551 is an odd 8-digits composite number following 20185550
and preceding 20185552 . In scientific notation, it is written as 2.0185551 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 13400064 positive integers (up to 20185551) that are relatively prime to 20185551.
20185551 has 16 divisors, whose sum is 30031200
The reverse of 20185551 is 15558102
Previous prime number is 257
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred eighty-five thousand five hundred fifty-one
Scientific notation
2.0185551 × 10^7
Engineering notation
2.0185551 × 10^6
Prime Factorization
9 × 3 × 257 × 2909
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20185551
Product of the distinct prime numbers
The prime factorization of 20185551 is 9 × 3 × 257 × 2909.
Since it has a total of 4 prime factors.
4 , 2 , 68 , 78 , 498 , 452 , 3206 , 1349 , 69497 , 81242 , 29112 , 772655 , 8773537 , 1058935 , 23645638 , 20015548 , 698364077 , 295569453 , 6126581267 , 4612305238
n×2
40371102
n×3
60556653
n×4
80742204
n×5
100927755
n÷2
10092775.5
n÷3
6728517
n÷3
5046387.75
n÷5
4037110.2
n2
407456469173601
n3
8.2247333387837E+21
n4
1.6602077427142E+29
n5
3.3512208061152E+36
2 √n
4492.8332931459
3 √n
272.27861715288
4 √n
67.028600560849
5 √n
28.907339415178
1 , 3 , 9 , 27 , 257 , 771 , 2313 , 2909 , 6939 , 8727 , 26181 , 78543 , 747613 , 2242839 , 6728517 , 20185551
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20185550
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20185551 can be divided by 16 positive divisors.
The sum of these divisors (counting 20185551) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000000000111001111
3
Ternary
1101222112101000
4
Quaternary
1031000013033
5
Quinary
20131414201
6
Senary
2000351343
8
Octal
115000717
10
Decimal
20185551
12
Duodecimal
6915553
16
Hexadecimal
13401cf
20
Vigesimal
6633hb
36
Base36
c0n9r
md5
7d1a92236727671e7c27fe845e81fc64
sha1
5a6c4f7cd0241fb2b32b7c8014815812c502f400
sha256
988b0f7d1c676e50b8f5b1d9f7989247e65f90d50f1cf932ca0f2a6709313a62
sha512
93371ac1be873ce052d7acd387f492d3339d1e12ac980a789359209b43619fb400fa3d95e7cc73c36b015f16714d6716d1b6c2e2b853ece7cc5922ce9d639f7f
ripemd-160
162769c23c2a9c32331aa6f171bbb83f450c17e1
Diameter
40371102
Circumference
126829557.46052
Area
1.2800622502134E+15
Volume
3.4451682446477E+22
Surface area
5.1202490008537E+15
Circumference
126829557.46052
Perimeter
80742204
Area
407456469173601
Diagonal
28546679.988174
Surface area
2444738815041606
Volume
8.2247333387837E+21
Space diagonal
34962399.910773
Perimeter
60556653
Area
1.7643382662032E+14
Altitude
17481199.955386
Surface area
1.7643382662032E+14
Volume
9.6929411955083E+20
Height
9515559.9960579